This is a picture book playing card set purchased at an aquarium over 20 years ago. You can learn the names of sea creatures while playing. Includes an explanation card. Brand new, unopened. Instant purchase OK! Quoted from the explanation card: Please use these playing cards as a guide to better understand and become familiar with the various creatures that live around the world. Adults, please refer to the explanatory text to increase your children's interest and concern for animals that are now disappearing, and think together about "What are beautiful nature and animals?"